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subduction

US /səb'dʌkʃən/

・

UK /səb'dʌkʃən/

A1 初級

n.名詞除去：減法

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卡斯卡迪亞斷層準備破裂：特大地震即將來臨 (The Cascadia Fault Is Ready To Rupture: A MEGA Earthquake Is Coming!)

卡斯卡迪亞斷層準備破裂：特大地震即將來臨 (The Cascadia Fault Is Ready To Rupture: A MEGA Earthquake Is Coming!)

A Cascadia subduction zone stretching from northern Vancouver Island to northern California is a ticking time bomb.
從溫哥華島北部一直延伸到加利福尼亞北部的卡斯卡迪亞俯衝帶是一顆定時炸彈。
Located approximately 100 miles off the Pacific Northwest coast, the Cascadia subduction zone spans about 620 miles from the northern reaches of California through Oregon and Washington, and ending off the coast of Vancouver Island, British Columbia.
卡斯卡迪亞俯衝帶距太平洋西北海岸約 100 英里，從加利福尼亞州北部經俄勒岡州和華盛頓州，到不列顛哥倫比亞省溫哥華島海岸，橫跨約 620 英里。

日本最危險的火山即將爆發？| 東京的噩夢 (Is Japan’s Most Dangerous Volcano About to Erupt? | Tokyo’s Nightmare)

日本最危險的火山即將爆發？| 東京的噩夢 (Is Japan’s Most Dangerous Volcano About to Erupt? | Tokyo’s Nightmare)

That's where both are related to the subduction of the Philippine Sea Plate.
這兩者都與菲律賓海板塊的俯衝有關。

日本最擔心的一天價值 1 萬億美元的大地震 (The Day Japan Fears The Most: $1 Trillion Megaquake)

日本最擔心的一天價值 1 萬億美元的大地震 (The Day Japan Fears The Most: $1 Trillion Megaquake)

That's where both are related to the subduction of the Philippine Sea Plate.
這兩者都與菲律賓海板塊的俯衝有關。

火山学者だけど質問ある？ | Tech Support | WIRED Japan

火山学者だけど質問ある？ | Tech Support | WIRED Japan

Mount St Helens erupt explosively while others like Kilauea lose lava? One of the things that's really amazing about volcanoes around the world is there's all sorts of different types of magma and these different types of magma lose and grow gas within them in different ways. So for example this is a magma that's a little bit more like what you might see in Kilauea and you can see it's got these great big bubble holes and that's because the gas can move around quite freely in the magma but other types of magma are kind of quite resistant to that and they create lots and lots of tiny little bubbles which creates huge pressures that mean when the volcano finally explodes there's a huge release of that pressure generating very large explosive eruptions and those large explosive eruptions generate something like this which is pumice which is super light and the reason it's super light is because it's absolutely full of holes which are a record of that gas trying really hard to get out being resisted by that type of magma. I'm going to put this into the beaker and it's going to float and it's floating because it's super light because it's largely composed of bubbles with just tiny little filaments of volcanic glass. Okay so at E. Batterson is wondering where do volcanoes get the magma slash lava? Now lots of people think there's a huge sea of magma just below the crust that's not true there's not magma everywhere it's particular conditions that are created to generate that magma and I'm going to show you this for a subduction zone so here's one plate it's diving down here's another plate here crashing into it okay now what happens is as that plate goes down it gets heated up and squeezed and it gives off fluids and those fluids create the special conditions where melt can be generated now that melt has got liquid in it so liquid rock if you like but it's also got gas and it's hot and what that means is that melt has a tendency to rise and as it rises up towards the surface it'll come out and then eventually what we have is our volcano. I've been loving your questions from the internet this has been Volcano Support signing off

人口統計學介紹－人口真的是問題的根源嗎？（Joel Cohen: An Introduction to Demography (Malthus Miffed: Are People the Problem?)）

人口統計學介紹－人口真的是問題的根源嗎？（Joel Cohen: An Introduction to Demography (Malthus Miffed: Are People the Problem?)）

and that’s where the subduction zones are in California. So cities are vulnerable